MarketEngine is described as 'multi-vendor marketplace platform developed and published by EngineThemes. With its WordPress-based, all-in-one marketplace software platform, MarketEngine helps businesses and developers create niche marketplaces in seconds' and is an app in the Business & Commerce category. There are more than 100 alternatives to MarketEngine for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Windows, Linux and SaaS. The best alternative is Etsy. It's not free, so if you're looking for a free alternative, you could try PrestaShop or WooCommerce. Other great apps like MarketEngine are OpenCart (Free, Open Source), Shopify (Paid), Thirty Bees (Free, Open Source) and Magento (Free Personal, Open Source).
THELIA, open source e-commerce Thelia is a tool for creating e-commerce websites and for online content management, published under General Public License. Thelia differs from competitor applications due to the ease with which it can be used and customised.
Payhip is an e-commerce platform that enables anyone to sell ebooks directly to their fans and followers using just a link. You can simply upload your product, enter the price and start selling on Twitter, Facebook or your own website.
WellCommerce is a modern open source e-commerce platform, which has been created from scratch on Symfony2 Full-stack framework, with a background of many years of experience gained through creation and development of 2 e-commerce platforms and dedicated implementations...
CubeCart is a hugely popular and very established open source eCommerce solution. A fantastic shopping cart which is easy to install, with a committed group of forum members eager to answer any CubeCart question.
Yo!Kart is a multi-vendor eCommerce platform to build online stores like Amazon, Ebay & Etsy. It is a fully customizable & scalable ecommerce marketplace software that allows business owners to make changes as per their requirements.